<script setup>
import { useCartStore } from '@/stores/cart';
import { ref, watch, computed } from 'vue';
import Product from './Product.vue';
let { cartList } = useCartStore()
const { shopid } = defineProps(['shopid'])
let bycartList = computed(() => { return cartList.find(e => e.shopid == shopid) || [] })
let sum = ref(0)
let isShow = ref(false)

let checkAll = computed({
    get() {
        if (bycartList.value.product) {
            return bycartList.value.product.every(e => e.checked == true)
        }
    },
    set(checked) {
        bycartList.value.product.forEach(e => e.checked = checked)
    }
})


sumvalue()
watch(cartList, () => {

    sumvalue()
})
function sumvalue() {
    sum.value = 0
    const bycartList = cartList.find(e => e.shopid == shopid)
    if (bycartList) {
        bycartList.product.forEach(e => {
            if (e.checked == true) {
                sum.value += e.price * e.number
            }

        })
    }
}
function cartnull() {
    bycartList.value.product = []
}
</script>


<template>
    <div class="cart">

        <!-- 注释 蒙版/遮罩 -->
        <div class="cart_mask" v-if="isShow" @click="isShow = !isShow"></div>
        <div class="cart_product" v-if="isShow">

            <div class="cart_product_header" v-if="true">

                <div class="cart_product_header_allChecked">
                    <input type="checkbox" class="circle-checkbox" v-model="checkAll"> 全选
                </div>

                <div class="cart_product_header_clear" @click="cartnull()">清空购物车</div>
            </div>


            <div class="cart_product_list" v-if="isShow">
                <div class="cart_product_list_item" v-for="item, i in bycartList.product" :key="item.id">
                    <div class="checkbox">

                        <input type="checkbox" class="circle-checkbox" v-model="item.checked">
                    </div>
                    <div class="content">
                        <Product :productInfo="item" :shopid='shopid'></Product>
                    </div>
                </div>
            </div>
        </div>



        <div class="cart_check" @click="isShow = true">
            <div class="cart_check_icon">
                <img src="http://www.dell-lee.com/imgs/vue3/basket.png">
                <!-- <span class="tag" v-if="shopCartCheckedCount > 0">{{ shopCartCheckedCount }}</span> -->
            </div>
            <!-- <div class="cart_check_empty" v-if="shopCartCount === 0">购物车是空的</div> -->



            <div class="cart_check_content">
                <div class="cart_check_content_total_price">总计 : <span class="check_content_total_price_number">￥{{ sum
                }}</span>
                </div>
                <div class="cart_check_content_submit">结算</div>
            </div>
        </div>
    </div>
</template>

<style lang="scss" scoped>
@import "@/style/viriables.scss";

.cart {
    &_mask {
        position: absolute;
        top: 0;
        bottom: .5rem;
        left: 0;
        right: 0;
        background-color: rgba($color: #000000, $alpha: .4);
    }

    &_product {
        width: 100%;
        position: absolute;
        left: 0;
        bottom: .5rem;
        background-color: $bgColor;

        //圆形复选框
        /* 设置选中背景 */
        .circle-checkbox:checked {
            background: #1673ff;
        }

        /* 设置复选框样式 */
        .circle-checkbox {
            width: .2rem;
            height: .2rem;
            background-color: #ffffff;
            border: solid 1px $light-fontColor;
            -webkit-border-radius: 50%;
            border-radius: 50%;
            font-size: 0.8rem;
            margin: 0;
            padding: 0;
            position: relative;
            display: inline-block;
            vertical-align: top;
            cursor: default;
            -webkit-appearance: none;
            -webkit-user-select: none;
            user-select: none;
        }

        /* 设置伪类，即显现的对勾样式 */
        .circle-checkbox:checked::after {
            content: "";
            top: 5px;
            left: 4px;
            position: absolute;
            background: transparent;
            border: #fff solid 2px;
            border-top: none;
            border-right: none;
            height: 3px;
            width: 8px;
            -moz-transform: rotate(-45deg);
            -ms-transform: rotate(-45deg);
            -webkit-transform: rotate(-45deg);
            transform: rotate(-45deg);
        }

        &_header {
            padding: .18rem;
            display: flex;
            justify-content: space-between;
        }

        &_list {
            max-height: 3rem;
            overflow-y: scroll;

            &_item {
                display: flex;

                .checkbox {
                    display: flex;
                    align-items: center;
                    margin-left: .18rem;
                }

                .content {
                    flex: 1;
                    width: 100%;
                }
            }
        }
    }

    &_check {
        width: 100%;
        height: .49rem;
        border-top: .01rem solid $content-bgColor;
        position: absolute;
        left: 0;
        bottom: 0;
        display: flex;

        // 购物车图标
        &_icon {
            width: .84rem;
            height: .49rem;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;

            img {
                width: .28rem;
                height: .26rem;
            }

            .tag {
                display: inline-block;
                width: .15rem;
                height: .15rem;
                border-radius: 50%;
                background-color: $hightlight-fontColor;
                color: $bgColor;
                font-size: .1rem;
                text-align: center;
                position: absolute;
                top: .05rem;
                right: .18rem;
            }

        }

        // 空购物车
        &_empty {
            line-height: .49rem;
        }

        // 总价
        &_content {
            flex: 1;
            display: flex;
            position: relative;
            width: 100%;

            &_total_price {
                flex: 1;
                line-height: .49rem;
                color: $hightlight-fontColor;

                &_number {
                    font-size: .18rem;
                }
            }

            &_submit {
                width: .98rem;
                height: .49rem;
                background-color: $btn-bgColor;
                color: $bgColor;
                text-align: center;
                line-height: .49rem;
            }
        }
    }
}
</style>